/*
 *
 *  This file is part of the SIRIUS library for analyzing MS and MS/MS data
 *  
 *  Copyright (C) 2013-2020 Kai Dührkop, Markus Fleischauer, Marcus Ludwig, Martin A. Hoffman and Sebastian Böcker, 
 *  Chair of Bioinformatics, Friedrich-Schilller University.
 *  
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 3 of the License, or (at your option) any later version.
 *  
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 *  
 *  You should have received a copy of the GNU General Public License along with SIRIUS. If not, see <https://www.gnu.org/licenses/lgpl-3.0.txt>
 */

package de.unijena.bioinf.lcms.noise;

import java.util.Arrays;

public class LocalNoiseModel implements NoiseModel {

    protected final float[] noiseLevelsPerScan;
    protected final int[] scanNumbers;

    public LocalNoiseModel(float[] noiseLevelsPerScan, int[] scanNumbers) {
        this.noiseLevelsPerScan = noiseLevelsPerScan;
        this.scanNumbers = scanNumbers;
    }

    @Override
    public double getNoiseLevel(int scanNumber, double mz) {
        final int i = Arrays.binarySearch(scanNumbers, scanNumber);
        return noiseLevelsPerScan[i];
    }

    @Override
    public double getSignalLevel(int scanNumber, double mz) {
        return getNoiseLevel(scanNumber,mz) * 10d;
    }
}
